Bobbin



(No Model.)

A. OBENHOPF.

BOBBIN.

No. 450,730. Patented Apr. 21, 1891.

UNITED STATES PATENT OFFICE.

ALBERT OBENIIOFF, OF MIL'WAUKEE, WISCONSIN.

BOBBIN.

SPECIFICATION forming part of Letters Patent No. 450,730, dated April21, 1891.

Application filed June 21,1890. $erial No, 356,203. (No model.)

To aZZ whom it may concern.-

Be it known that I, ALBERT OBENI-IOFF, of Milwaukee, in the county ofMilwaukee, and in the State of isconsin, have invented certain new anduseful Improvements in Bobbins; and I do hereby declare that thefollowing is a full, clear, and exact description thereof.

My invention relates to spinning-bobbins; and it consists in certainpeculiarities of construction and combination of parts, to behereinafter described with reference to the accompanying drawings, andsubsequently claimed.

In the drawings, Figure 1 represents a side elevation of a bobbinprovided with one form of my invention; Fig. 2, a vertical transversesection of the same; and Fig. 3, a side elevation, partly in section,showing another form of said invention.

Referring by letter to the drawings,A represents a wooden bobbin, havingthe base 1) thereof exteriorly provided with an annular groove 0, as isusual in this class of devices.

As shown in Figs. 1 and 2, an elastic packing-disk C is held against thebase Z) of the bobbin by means of a sheet-metal plate D, having acentral aperture for the bobbinspindle, and a series of upturned ears(I, embedded in the annular groove 0 of said bobbin and retained inposition bya spring clam ping-ring E, the latter being preferably withinsaid groove and flush with the periphery of said base.

\Vhile the construction just described is the one preferred, it isobvious that in place of the ears (I on the plate I), I may employ acontinuous flange e, as shown in Fig. 3.

The construction above described is a very economical one for attachingpacking-disks to bobbins, and the clamping-rings serve the doublepurpose of holding the sheet-metal plates in position and ofstrengthening the bases of said bobbins against splitting.

Having .thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. The combination of a bobbin having its base provided with apacking-disk, a plate opposed to the packing-disk and provided with oneor more upturned extensions in opposition to said base, and aclampingring arranged to impinge against said plate-extensions,substantially as set forth.

2. The combination of a bobbin having its base exteriorly provided withan annular groove, a packing-disk arranged on the base, a sheet-metalplate opposed to the packingdisk and provided with one or more upturnedextensions embedded in the basegroove, and a spring clamping-ringarranged to impinge against said plate-extensions with in said groove,substantially as set forth.

In testimony that I claim the foregoing I have hereunto set myhand, atMilwaukee, in

the county of Milwaukee and State of Wiseonsin,in the presence of twowitnesses.

ALBERT OBENHOFF.

Witnesses:

N. E. OLIPHANT, LAWSON SCOTT.

